Devices for applying compositions to eyelashes

A device with a dispensing and application system, equipped with thermal and optical sensors, addresses the challenges of uneven and inaccurate eyelash composition application by ensuring precise and adherent deposition.

FR3159298B3Active Publication Date: 2026-03-13LOREAL SA
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2024-02-16
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing methods for applying compositions to eyelashes, such as mascara or eyelash extensions, often result in indiscriminate application to the skin, detachment of the composition from the eyelashes, and uneven distribution, necessitating improved precision and adhesion.

Method used

A device with a dispensing system for mixing and pumping compositions, combined with an application system for heating and extruding, featuring intelligent control elements like thermal sensors and optical systems to ensure precise application within a defined workspace.

Benefits of technology

Ensures accurate and precise application of compositions to eyelashes, preventing deposition on non-target surfaces and enhancing adhesion by using intelligent control and sensor systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

Devices for Applying Compositions to Eyelashes. The invention relates to devices for applying compositions, such as curable cosmetic eyelash extension compositions, to eyelashes. A device includes elements for mixing, heating, and extruding the composition from the device, as well as elements for capturing the position of the device and coordinating the application of the composition to the eyelashes in a single movement, based on the captured positions and the desired lengths of filaments to be added to the eyelashes. The device includes means for preparing eyelashes for receiving the compositions, as well as wireless communication features for interaction with computing devices, such as smartphones. Figure for the abstract: none
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Description

Title of the invention: Devices for applying compositions to eyelashes SUMMARY

[0001] In one aspect, the disclosure proposes a device for applying a composition to a set of eyelashes, the device comprising: a dispensing system, including: a motor functionally connected to a power source, a mixer functionally connected to the motor and configured to mix a plurality of formulas to produce the composition, and a pump functionally connected to the motor and configured to pump the composition through an internal volume of the device; and an application system, including: a heating element functionally connected to the power source and configured to heat the composition within the internal volume, and an extruded outlet fluidly connected to the internal volume for extruding the composition from it.

[0002] In embodiments, the device further comprises: a formula package comprising the plurality of formulas, wherein the formula package can be reversibly fixed to a body of the device for delivering the plurality of formulas to the mixer of the device to produce the composition.

[0003] In embodiments, the plurality of formulas includes: a resin formula and a curing formula.

[0004] In embodiments, the plurality of formulas includes: a customizable formula.

[0005] In embodiments, the device further comprises: a thermal sensor configured to measure a temperature of the composition within the internal volume of the device for a measured temperature, and circuitry functionally connected to the thermal sensor and configured to control a function of the heating element for adjusting the temperature of the composition based on the measured temperature and a temperature threshold.

[0006] In embodiments, the temperature threshold is particular to the composition based on the plurality of formulas.

[0007] In some embodiments, the device further comprises: an accelerometer, a gyroscope, or both, functionally connected to the device's circuitry for detecting a movement of the device, an orientation of the device, or both; wherein the movement, orientation, or both serve to determine from a status of a gesture to apply the composition to the entire eyelashes via the circuitry.

[0008] In embodiments, the status of the gesture is chosen from a set of movement values, a set of orientation values, or both, positioned between a start point of the gesture and an end point of the gesture, which define a workspace within which the extrusion of the composition from the device applies the composition to the set of eyelashes.

[0009] In embodiments, the device further comprises: a contact sensor, a conductance sensor, or both, functionally connected to the device circuitry for detecting a position of the device relative to a facial feature; wherein the position is used by the circuitry to determine whether or not the device is positioned at the starting point of a gesture to apply the composition to the entire set of eyelashes.

[0010] In embodiments, a set of position values, positioned between the start point of the gesture and an end point of the gesture, defines a workspace within which the extrusion of the composition from the device applies the composition to the set of eyelashes.

[0011] In embodiments, the device further comprises: an optical system functionally connected to the circuitry of the device for detecting a position of the device relative to a facial feature; wherein the position is used to determine, by the circuitry, whether or not the device is positioned at a starting point of a gesture to apply the composition to the entire set of eyelashes.

[0012] In embodiments, the optical system comprises: a light element configured to irradiate the facial feature and an infrared (IR) camera configured to capture an IR image of the facial feature and transmit data from the IR image to the device circuitry for the determination, by the circuitry, of whether or not the device is positioned at the starting point of the gesture to apply the composition to the entire set of eyelashes.

[0013] In embodiments, the device further comprises: a wireless transceiver, functionally connected to the circuitry of the device, configured for wireless communication with a computing device comprising circuitry for user interaction with the device.

[0014] In embodiments, the device further comprises: a plurality of bristles, arranged in a brush configuration or a tweezer configuration, configured to come into contact with the entire eyelash assembly for the application of the composition to them.

[0015] In some embodiments, the device further comprises: a plurality of conductive hairs functionally connected to the power source and configured to contain an electrical charge from the power source and come into contact with the lash assembly to transfer at least some of the electrical charge to the lash assembly, so that the lash assembly is prepared to facilitate the adhesion of the composition to it.

[0016] This summary is provided to present a selection of concepts in a simplified form, which are described in greater detail below in the detailed description. This summary is not intended to identify key features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. Description of the drawings

[0017] [Fig-1] Fig. 1 shows a diagram of an example device for the application of a composition on a set of eyelashes, according to aspects of disclosure.

[0018] [Fig.2] Fig.2 shows a diagram of an example device for applying a composition to a set of eyelashes with an optical system, according to aspects of disclosure.

[0019] [Fig.3] The [Fig.3] shows a diagram of an example device for applying a composition to a set of eyelashes with a wireless transceiver, according to aspects of the disclosure.

[0020] [Fig.4] Fig.4 shows a diagram of an example device for applying a composition to a set of eyelashes with a contact sensor and an on / off control, according to aspects of disclosure.

[0021] [Fig.5] The [Fig.5] shows a diagram of an example device for applying a composition to a set of eyelashes in an eyelash curler form factor with an optical system, according to aspects of disclosure.

[0022] [Fig.6] Fig.6 shows a flowchart of an example of a method for using an eyelash priming device, according to aspects of disclosure.

[0023] [Fig.7] Fig.7 shows a flowchart of an example of a process operation of an eyelash priming device, according to aspects of disclosure.

[0024] [Fig.8] Fig.8 shows a flowchart of an example of a method of using a device for applying a moldable filament onto eyelashes, according to aspects of disclosure.

[0025] [Fig.9] The [Fig.9] shows a flowchart of an example of a process for operating a device for mixing, heating and extruding a moldable filament onto eyelashes, according to aspects of disclosure.

[0026] [Fig. 10] The [Fig. 10] shows a flowchart of an example of a method of operating a device for applying moldable filament to eyelashes within a workspace, according to aspects of disclosure.

[0027] The foregoing aspects and many associated advantages of the present invention will be more readily appreciated as they are better understood with reference to the detailed description that follows, when taken in conjunction with the accompanying drawings. Detailed description

[0028] Eyelash modifications for changing eyelashes include: false eyelashes, in which a fiber is attached to a subject's natural eyelashes; mascara for darkening, thickening, lengthening, and defining eyelashes; and eyelash extension compositions that can be applied to eyelashes with brush and wand applicators to extend the lash structure beyond its natural tips. Existing approaches for applying compositions to eyelashes are unsatisfactory for various reasons, such as indiscriminate application to the skin or other surface, detachment of the composition from the eyelashes, and uneven distribution of the composition along the lashes. Consequently, there is a need for overall improved approaches for applying compositions to eyelashes, including approaches that ensure accurate and precise application and that configure the eyelashes for superior adhesion to the composition once applied.This disclosure addresses these needs and other long-unmet needs in art. .

[0029] Accordingly, in one aspect, the disclosure proposes a device for applying a composition to a set of eyelashes that includes a dispensing system comprising elements for mixing and pumping the composition within the device during use, and an application system comprising elements for heating and extruding the composition from the device at the time of application during use. The device may include intelligent control elements, such as monitoring and control circuitry, to monitor the application process and control the dispensing system, the application system, and other elements to ensure that the composition is applied within a working area that includes the length of an eyelash and, optionally, an extension length that extends beyond the natural tip of the eyelash.The workspace defines a distance, space, or volume within which the composition must be applied to the eyelashes during use of the device.

[0030] Examples of disclosure devices, and examples of elements thereof, are shown in Figures 1, 2, 3, 4, and 5. A device can be configured to include a handle attached to a head, according to at least certain form factors. Although some elements are schematically depicted as being within the handle or the head, it should be understood that these elements and any other elements included in an implementation of a device can be moved or rearranged within the device. or within one or more additional spaces or structures that are usable with, or otherwise constitute, the device, without departing from the scope and spirit of the disclosure. It is important to note that the placement of schematic elements in positions within the handle or head as shown, as appropriate, is for illustrative purposes only and does not preclude alternative configurations according to embodiments that are expressly contemplated and included in the overall scope of the disclosure. Furthermore, although explicit structures for certain device elements may not be expressly shown or described here, it should be understood that such structures, or equivalent structures, are achievable in the art and are available to those skilled in the art seeking to implement aspects of the disclosure.

[0031] Furthermore, although the connections between elements of a device may not be explicitly shown in the figures, it should be understood that the elements shown, and any other element of a device implementation, may be interconnected in any number, order, or combination for their function or the function of the device as a whole. The connections may include, but are not limited to, one or more fluid or fluidic connections, one or more functional connections, one or more electrical connections, one or more mechanical or physical connections, one or more communication connections, one or more wired connections, one or more wireless connections, one or more logic connections, one or more wireless electromagnetic connections for wireless charging from a power source, one or more circuitry connections, and the like.For example, one or more connections can be implemented between any two or more elements as listed in Table 1 and as shown in the corresponding figures, for the operation of a device (or for the operation of elements or systems of the device). These connections and any other connections implemented in an embodiment can be used to coordinate the operation of the device elements and facilitate the overall operation of the device during use. This coordination can take place with the use of one or more sensors, computing devices, software applications, control circuitry, and the like, as described in more detail here and as encompassed by their equivalents.

[0032] As shown in Figures 1 and 2, a device (1, 3) includes a handle (1a, 3a) and a head (1b, 3b). The device (1, 3) includes a dispensing system, comprising: a motor (10, 3o) functionally connected to a power source (Ir, 3r), a mixer (In, 3n) functionally connected to the motor (10, 3o) and configured to mix a plurality of formulas (2a, 2b, 2c) to produce the composition, and a pump (Ip, 3p) functionally connected to the motor (10, 3o) and configured to pump the composition through an internal volume of the device (1, 3). The device (1,3) also includes an application system, comprising: a heating element (If, 3f) functionally connected to the power source (Ir, 3r) and configured to heat the composition within the internal volume, and an extruded outlet (If, 3f) fluidly connected to the internal volume for extruding the composition from it.

[0033] The formulas (2a, 2b, 2c) can be mixed before use, during use, or after use (e.g., for future use), in some embodiments. In particular embodiments, the formulas (2a, 2b, 2c) can be combined to form a curable composition and mixed shortly before use so that the composition does not harden within the device. In some embodiments, a portion of the internal volume is used to contain a curable composition after mixing but before extrusion, and this portion can be limited in size so that excess or unused curable composition does not harden within the device.In various embodiments, a composition formed from the mixture of formulas (2a, 2b, 2c) may be heated briefly before being extruded from the device, so that the extruded composition is warm or slightly warm and fluid enough to be extruded and applied to the eyelashes. In some embodiments, the application of heat to a composition may prevent or delay the hardening of the composition, so that the composition does not harden within the device. In at least some embodiments, the device may be cleaned with water or another solvent to remove unused formula or composition or other debris from the device after use.

[0034] The composition can be produced by mixing a plurality of formulas (2a, 2b, 2c). Although any suitable composition can be applied to the eyelashes with a device, in at least some embodiments, a curable composition can be applied. A curable composition can be produced by mixing a cosmetic resin formula and a curing agent formula, for example, which can optionally be further mixed with a customizable formula.The cosmetic resin formula can create a structure for the filament produced by the composition when applied to the eyelashes; the curing agent formula may include a catalyst that activates crosslinking or another reaction for curing the cosmetic resin formula, and the customizable formula may include a mixture of cosmetic polymers, film-forming agents, and the like, which allow the composition to impart any of a variety of cosmetic benefits to the eyelashes, such as hydration, curling, lengthening, and the like.

[0035] The formulas (2a, 2b, 2c) can be contained within a formula pack 2, as shown by way of example in Figures 1 and 2, as a consumable product for use with the device (1, 3). The formula pack 2 can be reversibly attached to the device (1, 3) and can form connections between the formula adapters (1s, 1t, 1u) of the device (1, 3) and the formula pack adapters (2d, 2e, 2f) of the formula pack 2. These connections can include fluid or fluidic connections that fluidly link the (separate) formulas (2a, 2b, 2c) with corresponding formula adapters of the device for combination and mixing within the device (1, 3). When one or more formulas from the formula pack 2 are consumed, a new or recharged formula pack 2 can be connected to the device (1,3) for further use of the device (1, 3).

[0036] In various embodiments, the formula pack 2 can be configured for a particular benefit or cosmetic application. For example, a customizable formula (e.g., 2a, 2b, or 2c) of the formula pack 2 can be formulated for a particular texture, volume, stiffness, density, color, or other specific property of the eyelash filament after it has been formed by applying the composition to the eyelashes. In at least some embodiments of the formula pack 2, the curing agent formula (e.g., 2a, 2b, or 2c) and the cosmetic resin formula (e.g., 2a, 2b, or 2c) can be kept constant or substantially constant, and the customizable formula (e.g., 2a, 2b, or 2c) can vary for different uses or benefits provided by using different formula packs 2.For example, the stiffness or structural integrity of the filament formed can be increased or decreased for the production of longer or shorter eyelash filaments by using different formula packages 2, respectively, according to various embodiments.

[0037] With further reference to Figures 1 and 2, in some embodiments, the device (1, 3) comprises a thermal sensor (1k, 3k), such as a thermometer, configured to measure the temperature of the composition within the internal volume of the device (1, 3) for a measured temperature, and circuitry functionally connected to the thermal sensor (1k, 3k) and configured to control a function of the heating element (1k, 3k) for adjusting the temperature of the composition based on the measured temperature and a temperature threshold. The circuitry connected to the thermal sensor can route signals from the thermal sensor (1k, 3k) to the logic circuitry of the device (or a computing device) for the computational determination of whether the measured temperature is within or outside a temperature threshold or range. Based on comparison, the logic circuitry can transmit signals or electric current to or through the heating element (If, 3f), from the power source (Ir, 3r), or may refrain from doing so, to increase or decrease the heating of the composition by the heating element (If, 3f) and control the temperature of the composition. The temperature of the composition maintained by these elements may be specific to a formula curing process or otherwise specific to the composition based on the plurality of formulas.

[0038] In some embodiments, the device (1, 3) includes an accelerometer (I1, 3i), a gyroscope (Ij, 3j), or both, functionally connected to the circuitry of the device (1, 3) for detecting a movement of the device (1, 3), an orientation of the device (1, 3), or both. In some embodiments, the movement, orientation, or both, detected by one or both of these sensors or by one or more other sensors of the device (1, 3), can be used for the determination, by the control circuitry of the device (1, 3), of the status of a gesture used to apply the composition to the set of eyelashes by the device (1, 3).In some embodiments, the gesture status is correlated, at least partially, with or within a tolerable range of, a movement value, an orientation value, or both, from a set of movement values, a set of orientation values, or both, that collectively constitute the gesture. A particular movement value from the set, an orientation value from the set, or both, is / are positioned within a workspace defined by a gesture start point and a gesture end point. The workspace defines the area, starting from the base of the eyelashes, for example, within which the extrusion of the composition from the device must apply the composition to the set of eyelashes.If, during the action, a user deviates significantly from the action defined by the set of movement values, the set of orientation values, or both, the device (1, 3) can perform an alert or corrective action. The action may include issuing an alert to the user to pause, stop, resume, or adjust the execution of the action; pausing or stopping a function of the device (1, 3) such as mixing, pumping, heating, or extrusion; or adjusting the function of the device (1, 3) to accommodate the user's deviation from optimal application of the composition and maintain the application of the composition within an acceptable range of accuracy. The alert may be an audible alert, a haptic or tactile alert, a visual alert, or any combination thereof.

[0039] With further reference to Figures 1 and 2, in embodiments the device (1, 3) further comprises: a contact sensor (1g, 3g), a conductance sensor (Ih, 3h), or both, functionally connected to the circuitry of the device (1, 3) and configured for the detection of a position of the device (1,3) in relation to a facial feature of a subject whose eyelashes are to receive the composition. The position of the device (1,3) relative to the facial feature serves to determine, by the circuitry of the device (or a calculation device), whether or not the device (1,3) is positioned at a starting point of a movement so that the device (1,3) is able to apply the composition to all of the subject's eyelashes.For example, the contact sensor (1g, 3g), the conductance sensor (1h, 3h), or both, can be configured to detect contact of one or more contact sensor pins (Id, 3d) with the eyelid or eyelashes of the subject, and a signal resulting from this contact can be transmitted from the contact sensor circuitry (1g, 3g) to the logic circuitry of the device (or a computing device) for computational confirmation of the device's positioning, e.g., such as can be used as a prerequisite for mixing, heating, or extruding the composition from the device (1,3).A sensor can be configured to transmit a small electrical current between two or more contact sensor pins (Id, 3d) when the pins (Id, 3d) make contact with a substrate. In at least some embodiments, the resulting electrical current from the contact of the pins with the substrate can be measured by the device's circuitry and compared to identified current ranges to determine the electrical resistance of the substrate and confirm the type of substrate in contact (e.g., hair or fibers, skin, etc.). If, based on the sensor data and the result, the substrate in contact with the contact sensor pins (Id, 3d) is the intended substrate (e.g., eyelashes), the device can be configured for use.In this way, the device (1,3) can be configured to avoid the deposition of the composition on a non-targeted surface, such as the skin or eyes or an object or an inert surface.

[0040] In at least some embodiments, and as shown by way of example in [Fig. 2], a device 3 further comprises an optical system 3v functionally connected to the circuitry of the device 3 for detecting the position of the device 3 relative to a facial feature of the subject. The position of the device 3 relative to the facial feature is used by the device's circuitry (or a computing device) to determine whether or not the device 3 is positioned at the starting point of a gesture to apply the formula to the eyelashes.In some embodiments, the optical system 3v comprises: a light element 3x configured to irradiate the facial feature and an infrared (IR) camera 3w configured to capture an IR image of the facial feature and transmit data from the IR image to the device circuitry (or to a computing device) to determine, by the circuitry, whether the device 3 is positioned at the starting point of the gesture to apply the composition to the eyelash set. In some embodiments of... In this embodiment, the light element 3x emits at least red or infrared light, and the infrared camera 3w images the light reflected from the surface of the subject's skin, eyelashes, or eyes. In some embodiments, the optical system 3v can be calibrated for use with a particular subject by entering a calibration mode for the device 3, positioning the device 3 at the starting point of the gesture, and recording the image of the subject's skin, eyelashes, or eyes at the starting point of the gesture with the device's memory storage (or a computing device). In some embodiments, the optical system 3v can be calibrated or otherwise configured for use with any of a variety of subjects based on calibration or usage data for individuals, groups, or populations.In some embodiments, once calibrated, the optical system can image the subject's skin, eyelashes, or eyes and compare the captured images with the recorded image, using image analysis, to determine if device 3 is positioned correctly for use. If, based on the optical system data and the result, device 3 is positioned at the starting position of the gesture, device 3 can be configured for use. In this way, device 3 can be configured to avoid deposition of the composition on a non-target surface, such as the skin, eyes, an object, or an inert surface.

[0041] With further reference to Figures 1 and 2, a device (1, 3) may comprise a plurality of conductive hairs (1e, 3c) functionally connected to the power source (Ir, 3r) and configured to carry an electrical charge from the power source (Ir, 3r) and to make contact with the cilia assembly to transfer at least a portion of the electrical charge to the cilia assembly. One or more of the cilia may thus have an electrical or ionic charge, so that the cilia assembly is better able to bind to the composition when the latter is applied to it. In these and other embodiments, the composition may comprise an ionic compound, or a plurality of compounds, which includes a charge or a net charge, respectively, that is opposite or complementary to an ionic charge of the primed cilia fiber.In this way, the ionic compound or plurality of compounds can bind ionically to the primed eyelash fiber, optionally in combination with one or more covalent bonds, to fix the eyelash filament to the eyelashes.

[0042] As shown in [Fig. 3], a printed circuit board 4m of a device 4 may include, among other things, a wireless transceiver 4y. In some embodiments, the wireless transceiver 4y is functionally connected to the circuitry of the device 4 and configured for wireless communication with a computing device 5 comprising circuitry for one or more user interactions with the device 4 by means of the computing device 5. The computing device 5 may be Any electronic logic device, but in some embodiments, this could be a mobile phone, tablet, personal computer, smartphone, and the like. Although not shown in Figures 1 and 2, the wireless transceiver 4y can be implemented in the example embodiments of these and other figures in the disclosure, as well as their equivalents, without departing from the scope and spirit of the disclosure.

[0043] Figure 4 shows an example of a form factor that can be used for implementing a disclosure device. A device 6 can be formed with a brush or rod form factor and can include a handle 6a with an on / off control 6z on it, and a head 6b. The head 6b can include a plurality of conductive bristles 6c for priming the eyelashes for receiving the composition, one or more contact sensor pins 6d configured for detecting contact with a surface, a plurality of bristles 6e, arranged in a brush configuration, for combing the eyelashes and facilitating the application of the composition during use, and other elements of the device including a heating element and an extruded outlet 6f, a contact sensor with circuitry 6g, and a conductance sensor with circuitry 6h.During use, a user grasps the handle 6a, positions the head 6b so that the conductive hairs 6c or the hairs 6e come into contact with the eyelashes, and activates the device 6 by operating the on / off control 6z. The on / off control 6z may include a button, switch, or similar device for the electronic activation of one or more features of the device 6. Once activated, the device 6 may perform one or more checks to determine the relative positioning of the device 6, begin mixing, pumping, and heating the composition, and extrude the composition from the extruded outlet of the device 6 to deposit the composition onto the eyelashes.

[0044] Figure 5 shows another example of a form factor for a disclosure device. A device 7 can be configured in a shape that at least partially resembles an eyelash curler. The device 7 can include a handle 7a attached to a head, and the head can include conductive bristles 7c, a contact sensor pin 7d, and bristles 7e arranged in a clip configuration. An optical system 7v can be included and positioned toward an upper portion of the device 7. During use, a user grasps the handle 7a, positions the head so that the conductive bristles 7c or the bristles 7e come into contact with the eyelashes, and activates the device 7 by operating the on / off control 7z. The on / off control 7z can include a button, a switch, or something similar, for the electronic activation of one or more features of the device 7.Once activated, device 7 can perform one or more checks to determine positioning. relative to device 7, begin mixing, pumping and heating the composition, and extrude the composition from the extruded outlet of device 7 to deposit the composition onto the eyelashes.

[0045] In one aspect, the disclosure proposes a kit comprising a disclosure device, a formula or package of disclosure formulas, instruction material for giving instructions on a method of using the device to a user, or any combination thereof.

[0046] In one aspect, the disclosure proposes a method for applying a composition to a set of eyelashes of a subject, the method comprising: positioning a device for applying the composition to the set of eyelashes at a starting point of a gesture for applying the composition to the set of eyelashes; activating the device for activation and execution of the gesture to apply the composition to the set of eyelashes; and positioning the device at an ending point of the gesture, at which point the device ceases applying the composition to the set of eyelashes. In various embodiments, the method of applying the composition to the subject's set of eyelashes may be carried out, at least in part, by providing instructional materials to instruct a user on how to use the device.In some embodiments, the instructional materials are provided to the user as part of a kit, for example, following the purchase of the kit and, optionally, a mail order or other physical delivery of the kit to the user or another individual. In some embodiments, the kit includes the device for applying the composition to the entire lash line, the formula or formula pack, a device repair or modification element, the instructional materials, or any combination thereof.

[0047] Accordingly, as shown in [Fig.8], an example of a method of using 10 a moldable filament application device on eyelashes can include, in step 10a, start; in step 10b, activate the eyelash device; in step 10c, position the eyelash device in the start position of the gesture; in step 10d, perform a gesture to apply the moldable filament to the eyelashes; in step 10e, position the eyelash device in the end position of the gesture; and in step 10of, end.

[0048] In embodiments, the device can perform various operations to aid in the application of the moldable filament onto the cilia, as shown by way of example in [Fig. 9]. An example of a method for operating a device for mixing, heating, and extruding a moldable filament onto the cilia 11 includes, in step 1a1a, starting; in step 11b, activating the heat, mixing, and dispensing elements; in step 11e, mixing a plurality of compositions to form a moldable filament; in step 1 ld, heat and extrader a moldable filament for application to eyelashes; and at step 1 If, end.

[0049] In various aspects, the disclosure proposes a method for priming eyelashes for receiving a composition onto them, using a device of the disclosure, as shown by way of example in [Fig. 6]. In some embodiments, the eyelashes can be primed before applying the composition to them to enhance the adhesion of the filament to the eyelashes, as described in more detail here. Such a method 8 can include, in step 8a, start; in step 8b, activating the eyelash device; in step 8c, positioning the eyelash device in the start-of-gesture position; in step 8d, performing a gesture to prime the eyelashes for receiving the moldable filament; in step 8e, positioning the eyelash device in the end-of-gesture position; and in step 8f, finish.In some embodiments, the device may have two or more activation modes, for example, a priming mode (to prime the eyelashes for receiving a composition on them) and an application mode (to apply a composition to a set of eyelashes of a subject).

[0050] In some embodiments, the device can perform various eyelash-priming assistance operations. As shown by way of example in [Fig. 7], an example of a method 9 for operating an eyelash-priming device can include, in step 9a, start; in step 9b, detecting the starting position of the stroke and activating the priming element (e.g., charge-conducting hairs); in step 9c, detecting movement and electrically priming eyelashes during the stroke with the priming element; in step 9d, detecting the ending position of the stroke and deactivating the priming element; and in step 9e, end. In at least some embodiments, at least one of the detection steps 9b, 9c, and 9d can be performed, at least in part, by calculations carried out by a computing device 9f using software compatible with the device ("APPLI"), for example.

[0051] In various aspects, the disclosure proposes the concept of a workspace within which the device can be used to prime eyelashes and apply the composition to the eyelashes. The workspace may include all or part of the length of an eyelash, and in some embodiments, may include an extension length that extends beyond the natural end of an eyelash. The extension length may be quantified as a percentage of the natural eyelash length or simply as a unit of length. In some embodiments, the extension length is a constant or variable percentage over a plurality of eyelashes within a set of eyelashes.

[0052] The extension length can be chosen by the user or the subject, or can be customized for a particular application, for example, for use in art, film, studio work, fashion, or makeup to provide a specific or personalized visual effect. The selection of a particular characteristic of the eyelash filament, such as the extension length, can be carried out, at least in part, following the selection of a virtual representation of the applied eyelash filament, generated by a computing device, before the actual application of the eyelash filament.For example, a camera on the device or a computing device can be used to capture an image of the eyelashes without the filament applied to them, and this image can be used as the basis for generating one or more virtual representations of one or more selectable eyelash filaments, shown as one or more overlays on one or more instances of the image. Selecting an overlay image with a particular extension length or other characteristic can serve as input that signals the device to be configured to apply the chosen eyelash filament to the eyelashes during use.

[0053] With regard to the actual application of the composition, the device undergoes various operating steps in support of the process. Figure 10 shows a flowchart of an example of a method 12 for operating a device for applying moldable filament to eyelashes within a workspace, according to aspects of the disclosure. The method 12 may include, in step 12a, start; in step 12b, detecting the start position of the gesture and activating the heating and dispensing elements; in step 12c, detecting movement and heat and extruding the moldable filament for application to the eyelashes during the gesture with the dispensing element; in step 12d, detecting the end position of the gesture and deactivating the dispensing element; and in step 12e, finish.In at least some embodiments, at least one of the detection steps 12b, 12c and 12d can be carried out, at least in part, by calculations performed by a computing device 12f using software compatible with the device (“APPLI”), for example.

[0054] Accordingly, in certain aspects, the disclosure proposes an "intelligent" eyelash filament application device comprising circuitry configured to perform all or part of a process, including, but not necessarily limited to, controlling the heating of the composition, controlling the mixing of formulas for the production of the composition, controlling a pump of the device for extruding the composition within a workspace based on sensor measurements, signaling a power source status including a charge status, controlling the hair priming charge for use in eyelash priming, and the like.

[0055] In some embodiments, the circuitry of a device is configurable with a processor and processor-executable instructions stored on a non-transient, machine-readable medium of the device. In some embodiments, a device includes a software application configured to perform all or part of one or more disclosure methods or processes, in any order or combination. However, in some embodiments, a device includes dedicated hardware circuitry. An additional circuitry configuration of the device may include wireless communication or networking circuitry, for example, circuitry configured for a wireless connection, such as a Bluetooth® connection, a Bluetooth® Low Energy (BLE) connection, and / or a Wi-Fi® connection, and / or a wired connection.The networking circuitry, in combination with other circuitry of the computing device, can be used to request, retrieve and / or receive data from a computing device or a remote server, for example.

[0056] In embodiments, the device can be managed, controlled, or operated using a computing device, such as a smartphone or a personal computing device, which can be operated by a user via a graphical user interface, as known in the art. In embodiments, the circuitry can include a functional connection of one or more sensors with the processor, or other circuitry, to perform logical operations and / or processes based on data received from one or more sensors, for example, optical sensors, thermal sensors, and the like. PAINTINGS

[0057] [Table 1]

[0058] Table 1. References and descriptions of drawings. Reference Description 1 Device Handle 1b Head Conductive bristles Id Contact sensor pin Bristles If Heating element and extruded output 1g Contact sensor circuitry Ih Conductance sensor circuitry li Accelerometer lj Gyroscope 1k Thermal sensor 11 Processing unit 1m Printed circuit board (PCB) In Mixer lo Motor 1P Pump iq Formula mixing elements lr Battery power supply 1s Formula adapter 1 It Formula adapter 2 lu Formula adapter 3 2 Formula pack 2a Formula 1 2b Formula 2 2c Formula 3 2d Formula pack adapter 1 2e Formula pack adapter 2 2f Formula pack adapter 3 3 Device 3a Handle 3b Head 3c Conductive bristles 3d Contact sensor pin 3e Bristles 3f Heating element and extruded outlet 3g Contact sensor circuitry 3h Conductance sensor circuitry 3i Accelerometer 3j Gyroscope 3k Thermal Sensor 31 Processing Unit 3m Printed Circuit Board (PCB) 3n Mixer 3o Motor 3p Pump 3q Formula Mixing Elements 3r Battery Power Supply 3s Formula Adapter 1 3t Formula Adapter 2 3u Formula Adapter 3 3v Optical System 3w IR Camera 3x Light 4 Device 4m PCB 4y Wireless Transceiver 5 Calculating Device 6 Device 6a Handle 6b Head 6c Conductive Hairs 6d Contact Sensor Pin 6e Hairs 6f Heating Element and Extruded Outlet 6g Contact Sensor Circuitry 6h Conductance Sensor Circuitry 6z On / Off Control 7 Device 7a Handle 7c Conductive bristles 7d Contact sensor pin 7e Bristles 7v Optical system 7z On / off control 8 Method of using an eyelash priming device 8a Start 8b Activate the eyelash device 8c Position the eyelash device in the starting position 8d Perform a stroke to prime the eyelashes for receiving the moldable filament 8e Position the eyelash device in the ending position 8f End 9 Method of operating an eyelash priming device 9a Start 9b Detect the starting position and activate the priming element 9c Detect movement and electrically prime the eyelashes during the stroke with the priming element 9d Detect the ending position and deactivate the priming element 9e End 9f Calculating device 10 Method of using a device for applying soft filament to eyelashes 10a Start 10b Activate the eyelash device 10c Position the eyelash deviceAt the beginning of the gesture, perform a movement to apply the moldable filament to the eyelashes. Position the eyelash device at the end of the gesture. 11. Method of operation of a device for mixing, heating, and extruding moldable filament onto eyelashes. 11a. Start. 11b. Activate the heating, mixing, and dispensing elements. 11c. Mix a plurality of compositions for moldable filament. 11d. Heat and extrude the moldable filament for application onto eyelashes. 11f. End. 12. Method of operation of a device for applying moldable filament onto eyelashes within a workspace. 12a. Start. 12b. Detect the start position of the movement and activate the heating and dispensing elements. 12c. Detect movement and heat and extrude the moldable filament for application onto the eyelashes during the movement with the dispensing element. 12d. Detect the end position of the movement and deactivate the dispensing element. 12e. End. 12f. Calculation device. NON-EXHAUSTIVE METHODS

[0059] Although general features of the disclosure are described and shown, and specific features of the disclosure are presented in the claims, the following non-limiting embodiments relate to features, and combinations of features, that are explicitly contemplated as forming part of the disclosure. The following non-limiting embodiments contain elements that are modular and can be combined with one another in any number, order, or combination to form a new non-limiting embodiment, which can itself be further combined with other non-limiting embodiments.

[0060] Embodiment 1. Device for applying a composition to a set of eyelashes, the device comprising: a dispensing system, including: a motor functionally connected to a power source, a mixer functionally connected to the motor and configured to mix a plurality of formulas to produce the composition, and a pump functionally connected to the motor and configured to pump the composition through an internal volume of the device; and an application system, comprising: a heating element functionally connected to the power source and configured to heat the composition within the internal volume, and an extruded outlet fluidly connected to the internal volume for extruding the composition from it.

[0061] Embodiment 2. Device of any other embodiment, further comprising: a formula package comprising the plurality of formulas, wherein the formula package can be reversibly fixed to a body of the device for delivering the plurality of formulas to the mixer of the device to produce the composition.

[0062] Embodiment 3. Device of any other embodiment, in which the plurality of formulas includes: a resin formula and a curing formula.

[0063] Embodiment 4. Device of any other embodiment, in which the plurality of formulas includes: a customizable formula.

[0064] Embodiment 5. Device of any other embodiment, further comprising: a thermal sensor configured to measure a temperature of the composition within the internal volume of the device for a measured temperature, and circuitry functionally connected to the thermal sensor and configured to control a function of the heating element for adjusting the temperature of the composition based on the measured temperature and a temperature threshold.

[0065] Embodiment 6. Device of any other embodiment, in which the temperature threshold is particular to the composition based on the plurality of formulas.

[0066] Embodiment 7. Device of any other embodiment, further comprising: an accelerometer, a gyroscope, or both, functionally connected to the circuitry of the device for detecting a movement of the device, an orientation of the device, or both; wherein the movement, the orientation, or both serve to determine a status of a gesture to apply the composition to the set of eyelashes by the circuitry.

[0067] Embodiment 8. Device of any other embodiment, wherein the status of the gesture is chosen from a set of movement values, a set of orientation values, or both, positioned between a starting point of the gesture and an ending point of the gesture, which define a workspace within which the extrusion of the composition from the device applies the composition to the set of eyelashes.

[0068] Embodiment 9. Device of any other embodiment, further comprising: a contact sensor, a conductance sensor, or both, connected functionally to the circuitry of the device for the detection of a position of the device in relation to a facial feature; wherein the position is used to determine, by the circuitry, whether or not the device is positioned at a starting point of a gesture to apply the composition to the entire set of eyelashes.

[0069] Embodiment 10. Device of any other embodiment, wherein a set of position values, positioned between the start point of the gesture and an end point of the gesture, defines a workspace within which the extrusion of the composition from the device applies the composition to the set of eyelashes.

[0070] Embodiment 11. Device of any other embodiment, further comprising: an optical system functionally connected to the circuitry of the device for detecting a position of the device relative to a facial feature; wherein the position is used to determine, by the circuitry, whether or not the device is positioned at a starting point of a gesture to apply the composition to the entire set of eyelashes.

[0071] Embodiment 12. Device of any other embodiment, wherein the optical system comprises: a light element configured to irradiate the facial feature and an infrared (IR) camera configured to capture an IR image of the facial feature and transmit data from the IR image to the circuitry of the device for the determination, by the circuitry, of whether or not the device is positioned at the starting point of the gesture to apply the composition to the entire set of eyelashes.

[0072] Embodiment 13. Device of any other embodiment, further comprising: a wireless transceiver, functionally connected to the circuitry of the device, configured for wireless communication with a computing device comprising circuitry for user interaction with the device.

[0073] Embodiment 14. Device of any other embodiment, further comprising: a plurality of bristles, arranged in a brush configuration or a tweezer configuration, configured to come into contact with the entire eyelash assembly for application of the composition to them.

[0074] Embodiment 15. Device of any other embodiment, further comprising: a plurality of conductive hairs functionally connected to the power source and configured to contain an electrical charge from the power source and to come into contact with the cilia assembly to transfer at least a part of the electrical charge to the cilia assembly, so that the cilia assembly is primed to facilitate the adhesion of the composition thereto.

[0075] Although illustrative embodiments have been shown and described, it should be appreciated that various changes can be made to them without departing from the spirit and scope of the invention.

Claims

Demands

1. Device (1, 3, 4) for applying a composition to a set of eyelashes, the device (1, 3, 4) comprising: a dispensing system, comprising: a motor (lo, 3o) functionally connected to a power source (Ir, 3r), a mixer (In, 3n) functionally connected to the motor (lo, 3o) and configured to mix a plurality of formulas (2a, 2b, 2c) to produce the composition, and a pump functionally connected to the motor (lo, 3o) and configured to pump the composition through an internal volume of the device (1, 3, 4); an application system, comprising: a heating element (If, 3f) functionally connected to the power source (Ir, 3r) and configured to heat the composition within the internal volume, and an extruded outlet (If, 3f) fluidly connected to the internal volume for extruding the composition from it;and a package of formulas (2) comprising the plurality of formulas (2a, 2b, 2c), wherein the package of formulas (2) can be reversibly fixed to a body of the device (1, 3, 4) for delivering the plurality of formulas (2a, 2b, 2c) to the mixer (In, 3n) of the device (1, 3, 4) to produce the composition.

2. Device (1, 3, 4) according to claim 1, further comprising: a thermal sensor (1k, 3k) configured to measure a temperature of the composition within the internal volume of the device (1, 3, 4) for a measured temperature, and circuitry functionally connected to the thermal sensor (1k, 3k) and configured to control a function of the heating element (If, 3f) for adjusting the temperature of the composition on the basis of the measured temperature and a temperature threshold.

3. Device (1, 3, 4) according to claim 2, wherein the temperature threshold is particular to the composition based on the plurality of formulas (2a, 2b, 2c).

4. Device (1, 3, 4) according to claim 1, further comprising: an accelerometer (11, 31), a gyroscope (11, 31), or both, functionally connected to the circuitry of device (1, 3, 4) for detecting movement of device (1, 3, 4), orientation of device (1, 3, 4), or both; wherein the movement, orientation, or both serve to determine the status of a gesture to apply the composition to all eyelashes via the circuitry.

5. Device (1, 3, 4) according to claim 4, wherein the gesture status is chosen from a set of movement values, a set of orientation values, or both, positioned between a gesture start point and a gesture end point, which define a workspace within which the extrusion of the composition from the device (1, 3, 4) applies the composition to the set of eyelashes.

6. Device (1, 3, 4) according to claim 1, further comprising: a contact sensor (1g, 3g), a conductance sensor (Ih, 3h), or both, functionally connected to the circuitry of the device (1, 3, 4) for detecting a position of the device (1, 3, 4) relative to a facial feature; wherein the position is used by the circuitry to determine whether the device (1, 3, 4) is positioned at the starting point of a gesture to apply the composition to the entire set of eyelashes.

7. Device (3) according to claim 1, further comprising: an optical system (3v) functionally connected to the circuitry of the device (3) for detecting a position of the device (3) relative to a facial feature; wherein the position is used to determine, by the circuitry, whether the device (3) is positioned at a starting point of a gesture to apply the composition to the entire set of eyelashes.

8. Device (3) according to claim 7, wherein the optical system (3v) comprises: a light element (3x) configured to irradiate the facial feature and an infrared (IR) camera (3w) configured to capture an IR image of the facial feature and transmit data from the IR image to the circuitry of the device (3) for the determination, by the circuitry, of whether the device (3) is positioned at the starting point of the gesture to apply the composition to the eyelash assembly.

9. Device (1, 3, 4) according to claim 1, further comprising: a wireless transceiver (4y), functionally connected to the circuitry of the device (1,3, 4), configured for wireless communication with a computing device (5) comprising circuitry for user interaction with the device (1,3, 4).

10. Device (1, 3, 4) according to claim 1, further comprising: a plurality of conductive hairs (1e, 3c) connected functionally to the power source (Ir, 3r) and configured to hold an electrical charge from the power source (Ir, 3r) and come into contact with the cilia assembly to transfer at least some of the electrical charge to the cilia assembly, so that the cilia assembly is primed to facilitate the adhesion of the composition to it.